MM-8796: Full implementation of "Schemes" in Store/Model/App layers. (#8357)

* Add Scheme model and stub store.

* Port ChannelStore to be Scheme aware.

* Make almost all the API/APP layer work with ChannelSchemes.

Only thing still hacky is UpdateChannelMemberRoles().

* Add basic SchemeStore implementation.

* Migrate UpdateChannelMemberRoles properly and fix tests.

* Update store tests and mocks so they work.

* Include creating default roles in Scheme create store function.

* Implement role deletion and start scheme deletion.

* Only use non-deleted roles for authorization.

* Add GetByScheme method to Team store.

* Add GetChannelsByScheme.

* Update store mocks.

* Implement scheme deletion in the store.

* Rename is valid function.

* Add offset and limit to queries to fetch teams and channels by scheme.

* Fix queries.

* Implement scheme awareness in Team store and add a migration.

* Tidy up ChannelStore mapping functions and add exhaustive unit tests.

* Add all missing i18n.

* Proper tests for TeamStore internal functions and fix them.

* Make additional TeamMember fields nullable.

* Make new ChannelMember fields nullable.

* Create new nullable columns without defaults.

* Make new fields in large tables nullalble.

* Fix empty list of TeamMembers.

* Deduplicate SQL queries.

* Fix spelling.

* Fix review comment.

* More review fixes.

* More review fixes.

store/storetest/mocks/LayeredStoreDatabaseLayer.go

@@ -432,6 +432,29 @@ func (_m *LayeredStoreDatabaseLayer) Role() store.RoleStore {
 	return r0
 }
 
+// RoleDelete provides a mock function with given fields: ctx, roldId, hints
+func (_m *LayeredStoreDatabaseLayer) RoleDelete(ctx context.Context, roldId string, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, roldId)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, string, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, roldId, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
 // RoleGet provides a mock function with given fields: ctx, roleId, hints
 func (_m *LayeredStoreDatabaseLayer) RoleGet(ctx context.Context, roleId string, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
 	_va := make([]interface{}, len(hints))
@@ -547,6 +570,91 @@ func (_m *LayeredStoreDatabaseLayer) RoleSave(ctx context.Context, role *model.R
 	return r0
 }
 
+// Scheme provides a mock function with given fields:
+func (_m *LayeredStoreDatabaseLayer) Scheme() store.SchemeStore {
+	ret := _m.Called()
+
+	var r0 store.SchemeStore
+	if rf, ok := ret.Get(0).(func() store.SchemeStore); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.SchemeStore)
+		}
+	}
+
+	return r0
+}
+
+// SchemeDelete provides a mock function with given fields: ctx, schemeId, hints
+func (_m *LayeredStoreDatabaseLayer) SchemeDelete(ctx context.Context, schemeId string, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, schemeId)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, string, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, schemeId, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
+// SchemeGet provides a mock function with given fields: ctx, schemeId, hints
+func (_m *LayeredStoreDatabaseLayer) SchemeGet(ctx context.Context, schemeId string, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, schemeId)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, string, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, schemeId, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
+// SchemeSave provides a mock function with given fields: ctx, scheme, hints
+func (_m *LayeredStoreDatabaseLayer) SchemeSave(ctx context.Context, scheme *model.Scheme, hints ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult {
+	_va := make([]interface{}, len(hints))
+	for _i := range hints {
+		_va[_i] = hints[_i]
+	}
+	var _ca []interface{}
+	_ca = append(_ca, ctx, scheme)
+	_ca = append(_ca, _va...)
+	ret := _m.Called(_ca...)
+
+	var r0 *store.LayeredStoreSupplierResult
+	if rf, ok := ret.Get(0).(func(context.Context, *model.Scheme, ...store.LayeredStoreHint) *store.LayeredStoreSupplierResult); ok {
+		r0 = rf(ctx, scheme, hints...)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*store.LayeredStoreSupplierResult)
+		}
+	}
+
+	return r0
+}
+
 // Session provides a mock function with given fields:
 func (_m *LayeredStoreDatabaseLayer) Session() store.SessionStore {
 	ret := _m.Called()